September

June

18 June -- iPhone Dev Team releases a new version of redsn0w (0.9.14b1), adding the capability to downgrade iPhone 3G/3GSBaseband from the 06.15.00 iPad baseband to the latest unlockable iPhone baseband (05.13.04). This allows 3G/3GS users that had upgraded to the iPad baseband, thus losing the GPS function and the ability to restore to stock firmware, to get back to an iPhone baseband, making their devices behave as intended again, as well as being unlockable by ultrasn0w.

14 June -- iPhone Dev Team releases a developer version of redsn0w (0.9.13dev1), which jailbreaks limera1n susceptible devices running iOS 6.0b. This version doesn't hacktivate nor install Cydia, as it hasn't been ported to iOS 6 just yet. This jailbreak, however, installs afc2 and SSH, enabling developers to fix and prepare their apps to the next iOS version.

11 June -- Apple announces iOS 6 at WWDC 2012, and seeds the first beta to developers.

2010

November

October

31 October -- The Dev Team releases redsn0w 0.9.6b2 which jailbreaks iOS 4.1, 4.2 and 3.2.2 on every device available at the time of release (except for iPT 2G MC). It also includes "DFU" button allowing to flash custom IPSW from Windows (see blog post).

10 October -- Following the first limera1n beta release, geohot released multiple versions, each fixing bugs affecting previous releases. Chronic Dev Team officialy anounces that, in order to keep SHAtter undisclosed and possibly preserve it for 5th generation devices, greenpois0n would be delayed in order to incorporate this new exploit limera1n uses.

August

12 August -- Saurik releases the first version of PDF Patcher, which installs Apple's patch for the FreeType vulnerability (used in conjunction with other exploits by Star). It works on firmwares as far back as 2.x, and renders iOS 3.2.2 and 4.0.2 useless for jailbreakers. Jailbreaking and installing this patch is currently the only way for users of first generation iPod touches and iPhones to protect themselves against malicious use of the exploit.